Copper conductors

Temperature measurements up to 400°C.

Mineral insulated RTD cable with copper conductors is a common choice for temperature measurements up to 400°C. Copper conductors have a very stable resistance vs temperature relation. Furthermore, the material is economically priced. These cables are available in the following sheath materials;

  • AISI 304 – 1.4301
  • AISI316(l) – 1.4401/1.4404
  • AISI316Ti – 1.4571
  • AISI321 – 1.4541
  • Inconel 600 – 2.4816

Furthermore Okazaki mineral insulated RTD cable with copper conductors are;

  • available in diameters ranging from 1.0mm to 8.0mm
  • available in normal spaced and wide-spaced execution
  • available with 2, 3, 4, 6 and 8 conductors
  • supplied with a material 3.1 certificate

AerOpak MI RTD cable specs – Type A cable – Reversed mounted

OD (mm)Tolerance  (mm) Wall thickness  (mm) Conductor diameter  (mm) Distance between wires  (mm) Resistance (Ω/m) m/Coil
9.00+/- 0.050.900.903.100.5020
8.00+/- 0.050.800.802.700.5025
6.40+/- 0.050.640.642.200.5039
6.00+/- 0.050.600.552.080.5045
4.80+/- 0.050.480.481.700.7070
4.50+/- 0.050.450.401.650.7080
3.20+/- 0.050.320.321.001.40159
3.00+/- 0.050.300.261.001.40181

AerOpak MI RTD cable specs – Type J cable – Top mounted

OD (mm) Tolerance  (mm) Wall thickness  (mm) Conductor diameter  (mm) Distance between wires  (mm) Resistance (Ω/m) m/Coil
12.70+/- 0.051.271.900.700.1520
9.00+/- 0.050.901.350.700.2040
8.00+/- 0.050.801.200.130.2551
6.40+/- 0.050.640.960.160.3580
6.00+/- 0.050.600.900.200.4291
4.80+/- 0.050.480.740.280.65142
4.50+/- 0.050.450.670.350.75162
3.20+/- 0.050.320.480.501.47166
3.00+/- 0.050.300.450.601.70189

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Overview of Mineral insulated RTD cables Kamet Trading can supplyNickel conductorsConstantan conductorsInconel 600 conductors